Hitler's Lost U-Boat
- Companion site to NOVA TV documentary. How was the wreck of a WWII German submarine, found in U.S. waters, identified? Includes animated "tour" of the U-Boat, interviews, submarine history timelime.

The U-boat War 1939-1945
- The U-boat Net is one the most comprehensive military and history sites on the Net. Dealing with the U-boat War 1939-1945 through over 5500 pages and covering all German U-boats in the war and over 156 of the most decorated officers and personalities. Now includes over 1100 books.